Update README-cn.md

Author: aidlearning

README-cn.md

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 ![AidLearning](https://cdn.nlark.com/yuque/0/2020/png/726405/1578322228096-7dba507c-67f2-463b-a280-791bebed0418.png?x-oss-process=image%2Fresize%2Cw_1492)
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     Linux+AI+Python+GUI 4in1 Environments Running on the Android . <a href='README-cn.md'>[中文版]</a> <a href='README.md'>[English]
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     <a href="https://travis-ci.org/lc-soft/LCUI"><img src="https://travis-ci.org/lc-soft/LCUI.png?branch=master" alt="Build Status"></a>